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Numerical Investigation of a Potential of Dedicated EGR System for Increasing Thermal Efficiency of SI Engines Fueled with Methane and Propane
Technical Paper
2015-01-1883
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This study tried to find a potential of dedicated EGR (d-EGR) system added to the four-cylinder spark ignition (SI) engine to decrease heat loss (Qheatloss) and improve thermal efficiency (ηth). Test fuels were chosen by methane and propane. PREMIX code in CHEMKIN-PRO was employed to calculate laminar burning velocity (SL) and flame temperature (Tf). Wiebe function and Wocshni's heat transfer coefficient were considered to calculate ηth. The results show that the d-EGR system increased ηth and it was higher than that of stoichiometric combustion of conventional SI engines due to the low Tf and fast SL.
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Lee, S., Iida, N., and Sako, T., "Numerical Investigation of a Potential of Dedicated EGR System for Increasing Thermal Efficiency of SI Engines Fueled with Methane and Propane," SAE Technical Paper 2015-01-1883, 2015, https://doi.org/10.4271/2015-01-1883.Also In
References
- Edwards , R. , Larivé , J. F. , Mahieu , V. and Rouveirolles , P. Well-To-Wheels Analysis of Future Automotive Fuels and Powertratins in the European Context TANK-to-WHEELS Report, Version 2c March 2007
- Irvin , G. and Rechard , A. Y. Combustion 4th edition Elsevier Inc. 2008
- Ivanič , Ž. , Ayala , F. , Goldwitz , G. and Heywood , J. B. Effects of Hydrogen Enhancement on Efficiency and NOx Emissions of Lean and EGR-Diluted Mixtures in a SI Engine SAE Technical Paper 2005-01-0253 2005 10.4271/2005-01-0253
- Topinka , J. , Gerty , M. , Heywood , J. , and Keck , J. , Knock Behavior of a Lean-Burn, H2 and CO Enhanced, SI Gasoline Engine Concept SAE Technical Paper 2004-01-0975 2004 10.4271/2004-01-0975
- Gerty , M. and Heywood , J. An Investigation of Gasoline Engine Knock Limited Performance and the Effects of Hydrogen Enhancement SAE Technical Paper 2006-01-0228 2006 10.4271/2006-01-0228
- Alger , T. and Mangold , B. Dedicated EGR: A New Concept in High Efficiency Engines SAE Int. J. Engines 2 1 620 631 2009 10.4271/2009-01-0694
- Chadwell , C. , Alger , T. , Zuehl , J. , and Gukelberger , R. A Demonstration of Dedicated EGR on a 2.0 L GDI Engine SAE Int. J. Engines 7 1 434 447 2014 10.4271/2014-01-1190
- DME handbook Japan DME Association 2011
- Kee , R. J. , Rupley , F. M. and Miller , J. A. CHEMKIN-II: A Fortran Chemical Kinetics Package for the Analysis of Gasphase Chemical Kinetics Technical report of Sandia National Laboratories Livermore CA. 1989 AC04-76DR00789
- Ozaki , K. , Sako , T. , Iida , N. and Lee , S. J. , Potential for a high efficiency of natural gas SI engine by “Dedicated EGR” 24 th Internal Combustion Engine Symposium 2013
- Lee , S. , Ozaki , K. , Iida , N. , and Sako , T. A Potentiality of Dedicated EGR in SI Engines Fueled by Natural Gas for Improving Thermal Efficiency and Reducing NOx Emission SAE Int. J. Engines 8 1 238 249 2015 10.4271/2014-32-0108
- Heywood John B. Internal Combustion Engine Fundamentals McGraw-Hill, Inc. 1988 0-07028637-X
- Lewis , B. Combustion, Flames and Explosions of Gases, 3 rd Edition Academic Press 1987 0123958881
- Machiko , K. and Yukio , K. Development of an Engine Torque Estimation Model-Examination of Heat Release Rate Estimation by Wiebe Function JSAE 38 6 139 144 2007
- Borman , G. and Nishiwaki , K. Internal Combustion Engine Heat Transfer Progress in Energy and Combustion Science 13 1 46 1987